Chemistry

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For which of the following aqueous salts will electrolysis produce hydrogen gas and oxygen gas? Answered the hint in Mastering Chem & looked over the book and I still have no idea.

Check all that apply:
A) NiF_2(aq)
B) NaF(aq)
C) NiI_2(aq)
D) NaI(aq)
E) CuBr(aq)

  • Chemistry -

    You get H2 from all but E.
    You get oxygen from A and B.

  • Chemistry -

    Turns out the correct answer was just B) NaF(aq)

  • Chemistry -

    Is this class beginning chemistry? I did not think freshman chemistry would be discussing hydrogen/metal over potential.

  • Chemistry -

    So is B correct, can someone explain

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